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FEB 17 '95 01.56PM FUGRO WEST ROSEVILLS P.215 <br /> 113 a <br /> FUGRO WEST, INC. ' <br /> February 17, 1995 1050 MAOCd tom,suite ISO <br /> sONMEN' rho S1TH : tr 3nuae2 x:a a <br /> Fugro Project No, 94-47-8620 <br /> >vN p�RM1T t S�RvtCl= Fix: leis}Baa-reao <br /> Ms. Mary Meays <br /> San Joaquin County Public Health Services <br /> Environmental Huth Division <br /> Post Office Box No 2009 <br /> 445 N. San Joaquin Street <br /> Stockton,, California 95201-2009 <br /> Subject: Proposal to Reduce vapor 1Vlonitaring Frequency <br /> Shell, Service Station (WIC No. 204-7524-3505) <br /> 2575 Country Club Boulevard <br /> Stockton, California <br /> S7CPHSfERD Site Code: 1223 <br /> Dear Ms. Meays: <br /> Fugro West, Inc. (Fugro), on behalf of Shell Oil Company, has been conducting utility vapor <br /> monitoring and mitigation activities at the subject site since December 12, 1994. These activities <br /> are performed in response to a release of gasolinv from an underground storage tank on the site. <br /> An interim suit vapor extraction and emission control; system is currently in operation. <br /> Handbailing of product (if any) from monitoring wells MW-1, MW-5, and RW-1 continues to <br /> be performed by Fugro personnel almost daily. <br /> Figure 1 shows locations of the utilities currently monitored with a field instrument. Table 1 <br /> presents the monitoring results_ <br /> Based on results presented in Table 1, we request approval to continue vapor monitoring of the <br /> utilities twice a week for one month. The vapor monitoring frequency may be revised further <br /> upon your approval. <br /> We appreciate your interest in the site. Fugro and Shell will continue to update you on the <br /> progress of ibis project, If you have any questions or comments, please contact us at (916) 792- <br /> 2110. Thank you for your assistance. <br /> Sincerely, <br /> JA,OJU,-),(P, . <br /> Sudhakar Talanki <br /> Project Engineer <br /> Attachments <br /> cc: E. Thayer, Central Valley Regional Water Quality Control Board <br /> D. T. Kirk, Shell Oil Company <br /> 94479620.BLT A rnemb4r of the Fugro group of cumparries with offices throUghCxft tho wend <br />